ERGO XT 1911 Grip Tapered Bottom Rigid Black. Also designed to be the thinnest possible and still use standard grip bushings and screws. Square bottom model provides a flush fit with magazine wells. Specifications for ERGO 1911 XT Tapered Bottom Rigid Grip: Manufacturer: ERGO Gun Make: 1911 Platform Gun Model: 1911 Material: Polymer Fabric/Material: Polymer Features of ERGO 1911 XT Tapered Bottom Rigid Grip Heavily textured Package Contents: ERGO 1911 XT Tapered Bottom Rigid Grip What firearm models does the manufacturer say ERGO 1911 XT Tapered Bottom Rigid Grip is compatible with? The manufacturer suggests that ERGO 1911 XT Tapered Bottom Rigid Grip is compatible with 1911ERGO 4501-BK: XT 1911 Grip Tapered Bottom RIGID Black